EP 2262303 A4 20151209 - CONCEALMENT PROCESSING DEVICE, CONCEALMENT PROCESSING METHOD, AND CONCEALMENT PROCESSING PROGRAM

Title (en)

CONCEALMENT PROCESSING DEVICE, CONCEALMENT PROCESSING METHOD, AND CONCEALMENT PROCESSING PROGRAM

Title (de)

MASKIERUNGSVERARBEITUNGSVORRICHTUNG, MASKIERUNGSVERARBEITUNGSVERFAHREN UND MASKIERUNGSVERARBEITUNGSPROGRAMM

Title (fr)

DISPOSITIF DE TRAITEMENT DE CAMOUFLAGE, PROCÉDÉ DE TRAITEMENT DE CAMOUFLAGE, ET PROGRAMME DE TRAITEMENT DE CAMOUFLAGE

Publication

EP 2262303 A4 20151209 (EN)

Application

EP 09726464 A 20090227

Priority

JP 2009053657 W 20090227
JP 2008092864 A 20080331

Abstract (en)

[origin: EP2262303A1] A cipher processing device includes: a MAC loss detecting/estimating section which estimates the radio bearer of the lost protocol data unit and a data amount of the lost protocol data unit out of protocol data units produced by division according to the logical channel information included in a packet combining data unit received by a base station of a mobile communication system; an RLC loss detecting/estimating section which detects occurrence of loss in the protocol data units when the protocol data units are put together into a service data unit, and estimates a lost amount of the protocol data units when the protocol data units are put together into the service data unit according to the estimated data amount; and a correction section which corrects a frame number of the service data unit based on the estimated data amount estimated by the detecting/estimating section.

IPC 8 full level

H04L 1/16 (2006.01); H04L 1/18 (2006.01); H04L 1/20 (2006.01)

CPC (source: EP US)

H04L 1/1642 (2013.01 - EP US); H04L 1/1812 (2013.01 - EP US); H04L 1/20 (2013.01 - EP US)

Citation (search report)

[AD] EP 1892988 A1 20080227 - NTT DOCOMO INC [JP]
See references of WO 2009122831A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

DOCDB simple family (publication)

EP 2262303 A1 20101215; EP 2262303 A4 20151209; EP 2262303 B1 20180613; CN 101981962 A 20110223; CN 101981962 B 20130724; JP 5056944 B2 20121024; JP WO2009122831 A1 20110728; US 2010306610 A1 20101202; US 8352838 B2 20130108; WO 2009122831 A1 20091008

DOCDB simple family (application)

EP 09726464 A 20090227; CN 200980111554 A 20090227; JP 2009053657 W 20090227; JP 2010505473 A 20090227; US 86456809 A 20090227